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A man is l=9 m behind the door of a trai...

A man is l=9 m behind the door of a train when it starts moving with acceleration a=`2 m//s^2`.The man runs at full speed. How far does he have to run and after what time does he get into the train ? What is his full speed ?

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SL ARORA-MOTION IN ONE DIMENSION-problems for self practice
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